AudioStreamRecord.h revision 3316d5e6d375a4f09c681205e9094d30a0bfc4a2 
1/*
2 * Copyright 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef LEGACY_AUDIO_STREAM_RECORD_H
18#define LEGACY_AUDIO_STREAM_RECORD_H
19
20#include <media/AudioRecord.h>
21#include <aaudio/AAudio.h>
22
23#include "AudioStreamBuilder.h"
24#include "AudioStream.h"
25#include "AAudioLegacy.h"
26
27namespace aaudio {
28
29/**
30 * Internal stream that uses the legacy AudioTrack path.
31 */
32class AudioStreamRecord : public AudioStream {
33public:
34    AudioStreamRecord();
35
36    virtual ~AudioStreamRecord();
37
38    virtual aaudio_result_t open(const AudioStreamBuilder & builder) override;
39    virtual aaudio_result_t close() override;
40
41    virtual aaudio_result_t requestStart() override;
42    virtual aaudio_result_t requestPause() override;
43    virtual aaudio_result_t requestFlush() override;
44    virtual aaudio_result_t requestStop() override;
45
46    virtual aaudio_result_t getTimestamp(clockid_t clockId,
47                                       int64_t *framePosition,
48                                       int64_t *timeNanoseconds) override {
49        return AAUDIO_ERROR_UNIMPLEMENTED; // TODO
50    }
51
52    virtual aaudio_result_t read(void *buffer,
53                             int32_t numFrames,
54                             int64_t timeoutNanoseconds) override;
55
56    virtual aaudio_result_t setBufferSize(int32_t requestedFrames) override;
57
58    virtual int32_t getBufferSize() const override;
59
60    virtual int32_t getBufferCapacity() const override;
61
62    virtual int32_t getXRunCount() const override;
63
64    virtual int32_t getFramesPerBurst() const override;
65
66    virtual aaudio_result_t updateState() override;
67
68private:
69    android::sp<android::AudioRecord> mAudioRecord;
70    // TODO add 64-bit position reporting to AudioRecord and use it.
71    aaudio_wrapping_frames_t   mPositionWhenStarting = 0;
72    android::String16          mOpPackageName;
73};
74
75} /* namespace aaudio */
76
77#endif /* LEGACY_AUDIO_STREAM_RECORD_H */
78